移动通信中信道工作于符合瑞利分布的快衰落并叠加有信号幅度满足对数()的慢衰落。

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正态分布

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YourL/CNo.111for£2000issuedbytheBankLtd,Liverpool,has____.

A、bearriving
B、beenarriving
C、arrived
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Someconceptsmaybedifficulttograspchieflybecausetheymaybeunfamiliaror_____ideas,opinionswhichwealreadyhold.

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ReadingComprehension

SectionA

Directions:Therearetenincompletesentencesinthissection.ForeachsentencetherearefourchoicesmarkedA,B,CandD.ChoosetheONEthatbestcompletesthesentence.Thenwritedowntherightanswerinthebracketsforeachsentence.Thissectiontotals10points,onepointforeachsentence.

()1.Wecansupplyallthebicyclesyourequired____________stockandarearrangingshipmentbyM.V.Mermaid.

A.forB.from C.to D.against

()2.Wewouldliketoremindyouthatthe__________L/CmustreachusbeforeMarch10

sothatwecanmakeshipmentingoodtime.

A.coveringB.cover C.coveredD.beingcovered

()3.Wehavereceivedyourletterof28March,___________ustomodifythepreviousarrangementsfortheshipmentofthecaptionedorder.

A.askedB.toask C.beingaskedD.asking

()4.InourletterofMay5,wemade__________clearthatshipmentistobeeffectedinJune.

A.youB.them C.thatD.it

()5.Wealwaysdeal_______________paymentbysightL/C.

A.with B.in C.at D.on

()6.Thisofferis_____________toyourreplyreachingusbeforethe20thofFebruary.

A.subjectingB.subject C.subjectedDtosubject

()7.____________weareappreciatingthegoodqualityofyourblacktea,weregretthatyourpriceappearstobeonthehighside.

A.WhileB.When C.HoweverD.Therefore

()8.Weherebyauthorizeyouto___________onusat60daysaftersighttotheextentofUSD20,000.00.

A.open B.establish C.draw D.build

()9.Ifpartiestoacontractdesiretosettledisputes,anarbitrationclauseisusuallymadeinthecontractwellbeforeadispute_____________.

A.risesB.arisesC.lookD.appear

()10.Somecustomersrequestedusto_____________ourpricebecausetheyconsideredit

toohigh.

A.putdownB.getdownC.takedown D.bringdown

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Mario:Yourbelovedteacherhasarrivedhere,Nina.

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